<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 表单 -->
      <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="el-icon-user" placeholder="请输入账号"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input v-model="loginForm.password" type="password" prefix-icon="el-icon-goods"
            placeholder="请输入密码"></el-input>
        </el-form-item>
        <!-- 验证码 -->
        <el-form-item prop="captcha">
          <el-input v-model="loginForm.captcha" placeholder="请输入验证码" prefix-icon="el-icon-refresh"
            style="width: 200px;"></el-input>
          <img src="../assets/captchaSrc.png" @click="refreshCaptcha"
            style="vertical-align: middle; margin-left: 10px;height: 40px;width: 200px;">
        </el-form-item>
        <!-- 按钮 -->
        <el-form-item class="bts">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
import { login } from '../api'
export default {
  data() {
    return {
      //这是登录表单的数据绑定对象
      loginForm: {
        username: '',
        password: '',
        captcha: ''
      },
      //表单的验证规则
      loginFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 8, message: '长度在 6 到 8 个字符', trigger: 'blur' }
        ],
        captcha: [{ required: true, message: '请输入验证码', trigger: 'blur' },
        { min: 5, max: 5, message: '验证码长度为5位', trigger: 'blur' }
        ],
      }
    }
  },
  methods: {
    // 刷新验证码
    refreshCaptcha() {

    },
    //清空
    resetForm() {
      this.$refs.loginFormRef.resetFields()
    },
    //登录验证
    async login() {
      // const data = await login('admin')
      // const data = await login('admin')
      // console.log(data);
      // const token = data.token
      // 本地 vuex
      // this.$store.commit('LOGIN_IN', token)
      // this.$refs.loginFormRef.validate(async valid => {
      //   if (!valid) return false
      //   const { data: res } = await this.$http.post('login', this.loginForm)
      //   if (res.meta.status !== 200) return this.$message.error('登录失败')
      //   this.$message.success('登录成功')
      //   //1.登录成功将token保存到sessionStorage
      //   window.sessionStorage.setItem('token', res.data.token)
      //   //2.通过编程式导航跳转到后台主页，路由地址是/home
      this.$router.push('/home')
      // })
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
  background: #2b4b6b;
  height: 100%;
}

.login_box {
  width: 450px;
  height: 300px;
  background: #fff;
  border-radius: 3px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);

  .avatar_box {
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #eee;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #fff;

    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background: #eee;
    }
  }
}

.bts {
  display: flex;
  justify-content: flex-end;
}

.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
</style>